diff --git a/config/corne.keymap b/config/corne.keymap
index ca8396a..850a142 100644
--- a/config/corne.keymap
+++ b/config/corne.keymap
@@ -78,11 +78,10 @@ SPDX-License-Identifier: MIT
 #define FUNCTION 3
 #define MEDIA 4
 #define MOUSE 5
-#define NONE_LOCK_LAYER 6
-#define LOCK_LAYER 7
-#define EXTRA 8
+#define LOCK_LAYER 6
 #define LOCK &tog LOCK_LAYER
 #define UNLOCK &tog DEFAULT
+#define TO_FUNCTION &tog FUNCTION
 // combinadas para optimizar espacio
 #define MEDIA_ESC &lt MEDIA ESC
 #define MOUSE_TAB &lt MOUSE TAB
@@ -277,23 +276,7 @@ SPDX-License-Identifier: MIT
       // If https://github.com/zmkfirmware/zmk/issues/405 is implemented, this layer can be
       // replaced by a native behavior in the future.
       // &mo NONE_LOCK_LAYER   &mo LOCK_LAYER
-      none_lock_layer {
-          bindings = <
-              &mo EXTRA  &none      &none      &none      &none      &none                            &none      &none      &none      &none      &none      &none
-              &none      &none      &none      &none      &none      &none                            &none      &none      &none      &none      &none      UNLOCK
-              &none      &none      &none      &none      &none      &none                            &none      &none      &none      &none      &none      &none
-                                                          &none      &none     &none       &none      &none      &none
-          >;
-      };
       lock_layer {
-          bindings = <
-              &none      &none      &none      &none      &none      &none                            &none      &none      &none      &none      &none      &none
-              &none      &none      &none      &none      &none      &none                            &none      &none      &none      &none      &none      &none
-              &none      &none      &none      &none      &none      &none                            &none      &none      &none      &none      &none      &none
-                                                          &none      &none     &none      &none       &none      &mo NONE_LOCK_LAYER
-          >;
-      };
-      extra_layer {
           bindings = <
               &none      &none      &none      &none      &none      &none                            &none      &none      &none      &none      &none      &none
               &none      &none      &none      &none      &none      &none                            &none      &none      &none      &none      &none      UNLOCK